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Loswr
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Don Haines said:On the 60D, long exposure noise reduction can be OFF, AUTO, or ON. When set to AUTO it never seems to happen. When I set it to ON it works as expected....Camera set to manual, ISO400, lens cap on, 15 second exposure..... and the shutter stays open for 15 seconds, followed by 15 seconds wait, then the image appears. Change it to bulb mode, hold the shutter down for 60 seconds, then the camera waits for 60 seconds, and the image appears.
And best of all, both pictures are BLACK!
Same on the 7D. And on the 1D X. After checking more carefully, long exposure NR on the 1D X is behaving as normal - wne set to Enable, a 30 s exposure is followed by a 30 s dark frame.
Sorry for the earlier confusion.
dude said:I'll be waiting anxiously.
How are you determining that the dark frame is done? After the exposure and a few seconds into the dark frame, the read LCD comes back on (showing the quick control menu). Last night, that's when I stopped the timer - I was holding the camera, and my hand was covering the red light. :-[ But, the red light is still on and the 'shots remaining' display flashes until the dark frame is done, and the review image is displayed. To confirm, on both my 7D and my 1D X, with long exposure NR enabled (not Auto), the dark frame is the same duration as the exposure setting.
So...I recommend checking again, timing from the shutter/mirror click until the red light goes out and the review image shows up - that should be the same length of time as the exposure was set. If not, I'd call Canon.
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